Hauensuoli (Pike’s gut in English) is a narrow strait between the islands Tullholmen and Kobben outside of Tulliniemi. There are over 339 rock carvings on the island. This “visitor’s book of the archipelago” consists the names and coats of arms of nobility, soldiers and tradesmen. The earliest ones are from the 16th century.
Gustavsvärn is the best kept part of a four-part fortress on an islet outside of Hanko. The fortress was built by the Swedes in the late 18th century, who added a lighthouse in 1951. The attendant’s house is well kept and maintainted by the Finnish Lighthouse Society, who sell souvenirs there in the summer.
2nd July-13th August 2026 Hauensuoli and Gustavsvärn departures on Tuesdays and Saturdays at 2 pm from Itäsatama (marina in Eastern harbour) in Hanko, length approx. 2 hours
Weather permitting and minimum number of passengers




